Along with a $500,000 challenge grant from symphony board member Yvonne Shaheen, the donations announced Tuesday lifted the orchestra nearly halfway toward its $5 million fundraising goal by Feb. 3. The three donations represent $2 million of the $2.35 million the orchestra has raised.

If it meets the goal, the orchestra and the musicians will enter into a new five-year contract that cuts musicians' pay by 32 percent in the first year and reduces the year-round performance schedule by eight weeks during the first two years.

Deadlocked labor talks resulted in five weeks of canceled performances earlier this year.